Four gases P, Q, R andS have almost same values of 'b' but their 'a' values (a, b are van der Waals constants) are in the order `Q lt R lt S lt P`. At a particular temperature, among the four gases the most easily liquefiable one is

Options

A. P
B. Q
C. R
D. S

Answer

A

Explanation

Higher the values of .a. more will be the tendency to get liquefy, Value of a is highest for gas P. Thus, it is the most liquefiable gas among the given gases.